US20180152163A1 - Noise control method and device - Google Patents

Noise control method and device Download PDF

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US20180152163A1
US20180152163A1 US15/880,598 US201815880598A US2018152163A1 US 20180152163 A1 US20180152163 A1 US 20180152163A1 US 201815880598 A US201815880598 A US 201815880598A US 2018152163 A1 US2018152163 A1 US 2018152163A1
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Prior art keywords
volume
noise
intensity value
sub
message
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US15/880,598
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Jia Liu
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Beijing Zhigu Ruituo Technology Services Co Ltd
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Beijing Zhigu Ruituo Technology Services Co Ltd
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Priority to CN201410085419.1A priority Critical patent/CN103886857B/en
Priority to CN201410085419.1 priority
Priority to PCT/CN2014/095319 priority patent/WO2015135365A1/en
Priority to US201615117182A priority
Application filed by Beijing Zhigu Ruituo Technology Services Co Ltd filed Critical Beijing Zhigu Ruituo Technology Services Co Ltd
Priority to US15/880,598 priority patent/US20180152163A1/en
Assigned to BEIJING ZHIGU RUI TUO TECH CO., LTD reassignment BEIJING ZHIGU RUI TUO TECH CO., LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIU, JIA
Publication of US20180152163A1 publication Critical patent/US20180152163A1/en
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    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20Automatic control
    • H03G3/30Automatic control in amplifiers having semiconductor devices
    • H03G3/32Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208Noise filtering
    • G10L21/0216Noise filtering characterised by the method used for estimating noise
    • G10L21/0232Processing in the frequency domain
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00Monitoring arrangements; Testing arrangements
    • H04R29/001Monitoring arrangements; Testing arrangements for loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/04Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general

Abstract

A noise control method and device are provided that relate to the field of noise control. The noise control method includes: acquiring noise information of an ambient environment; judging whether the noise information satisfies a predetermined condition, and if yes, acquiring a first message from a first device; and judging, according to the first message, whether the noise information is related to the first device, and if yes, sending a second message to the first device, the second message being used to notify the first device to adjust a volume. The noise control method and device in the embodiments of the present application may easily and quickly realize noise control over a specific device, thereby improving user experience.

Description

    RELATED APPLICATION
  • The present application is a divisional of, and claims priority to each of, pending U.S. patent application Ser. No. 15/117,182, filed Aug. 5, 2016, and entitled “NOISE CONTROL METHOD AND DEVICE”, which is a U.S. National Stage filing under 35 U.S.C. § 371 of international patent cooperation treaty (PCT) application No. PCT/CN2014/095319, filed Dec. 29, 2014, and entitled “NOISE CONTROL METHOD AND DEVICE”, which claims the benefit of priority to Chinese Patent Application No. 201410085419.1, filed on Mar. 10, 2014. The entireties of the aforementioned applications are hereby incorporated herein by reference.
  • TECHNICAL FIELD
  • The present application relates to the field of noise control technologies, and in particular, to a noise control method and device.
  • BACKGROUND
  • Noise pollution is a problem that people often encounter in everyday life. Generally, sounds that affect people's work, study and rest are called noise.
  • More and more electronic devices, while enriching people's everyday life, also bring about new noise pollution problems. For example, when a user is having a rest in the bedroom, perhaps other family members are watching TV in the living room, and at this time, if a sound that the TV set makes is too loud, the sound easily becomes noise, affecting the user's rest. For another example, when a user is listening to music through an audio system, at this time, the phone rings, and the user answers the phone and finds that the sound of the audio system is too loud, affecting the user's normal answering of the phone.
  • In the foregoing scenarios, the user often manually controls the volume key of the TV set or the audio system to adjust a volume, and then noise interference may be avoided, which has cumbersome steps and poor user experience.
  • SUMMARY
  • An example object of the present application is to provide a noise control method and device.
  • In a first example aspect, an embodiment of the present application provides a noise control method, and the method includes:
  • acquiring noise information of an ambient environment;
  • judging whether the noise information satisfies a predetermined condition, and if yes, acquiring a first message from a first device; and
  • judging, according to the first message, whether the noise information is related to the first device, and if yes, sending a second message to the first device, the second message being used to notify the first device to adjust a volume.
  • In a second example aspect, an embodiment of the present application provides a noise control method, and the method includes:
  • acquiring, by a device, sound sampling information of a sound the device makes;
  • sending a first message including the sound sampling information;
  • receiving a second message from the external; and
  • adjusting a volume based on a volume adjustment policy according to the second message and a current volume.
  • In a third example aspect, an embodiment of the present application provides a noise controlling device, and the controlling device includes:
  • a first acquisition module, configured to acquire noise information of an ambient environment;
  • a first judgment module, configured to judge whether the noise information satisfies a predetermined condition;
  • a second acquisition module, configured to acquire a first message from a first device if the noise information satisfies the predetermined condition;
  • a second judgment module, configured to judge, according to the first message, whether the noise information is related to the first device; and
  • a message sending module, configured to send a second message to the first device if the noise information is related to the first device, the second message being used to notify the first device to adjust a volume.
  • In a fourth example aspect, an embodiment of the present application provides a noise controlled device, and the controlled device includes:
  • an acquisition module, configured to acquire sound sampling information of a sound the device makes;
  • a sending module, configured to send a first message including the sound sampling information;
  • a receiving module, configured to receive a second message from the external; and
  • an adjustment module, configured to adjust a volume based on a volume adjustment policy according to the second message and a current volume.
  • Noise control methods and devices in the various embodiments of the present application may easily and quickly realize noise control over a specific device, thereby improving user experience.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an example flowchart of a noise control method according to an embodiment of the present application;
  • FIG. 2 is an example flowchart of a noise control method in an implementation of an embodiment of the present application;
  • FIG. 3 is an example flowchart of a noise control method according to an embodiment of the present application;
  • FIG. 4 is an example flowchart of step S380 in an implementation of an embodiment of the present application;
  • FIG. 5 is an example flowchart of step S381 a in an implementation of an embodiment of the present application;
  • FIG. 6 is an example flowchart of step S380 in an implementation of an embodiment of the present application;
  • FIG. 7 is an example flowchart of step S381 b in an implementation of an embodiment of the present application;
  • FIG. 8 is an example flowchart of step S380 in an implementation of an embodiment of the present application;
  • FIG. 9 is an example flowchart of step S381 c in an implementation of an embodiment of the present application;
  • FIG. 10 is an example flowchart of step S380 in an implementation of an embodiment of the present application;
  • FIG. 11 is an example flowchart of step S380 in an implementation of an embodiment of the present application;
  • FIG. 12 is an example schematic diagram of a modular structure of a noise controlling device according to an embodiment of the present application;
  • FIG. 13 is an example schematic diagram of a modular structure of a first acquisition module in an implementation of an embodiment of the present application;
  • FIG. 14 is an example schematic diagram of a modular structure of a first acquisition module in an implementation of an embodiment of the present application;
  • FIG. 15 is an example schematic diagram of a modular structure of a noise controlling device in an implementation of an embodiment of the present application;
  • FIG. 16 is an example schematic diagram of a modular structure of a noise controlled device according to an embodiment of the present application;
  • FIG. 17 is an example schematic diagram of a modular structure of a noise controlled device in an implementation of an embodiment of the present application;
  • FIG. 18 is an example schematic diagram of a modular structure of an adjustment module in an implementation of an embodiment of the present application;
  • FIG. 19 is an example schematic diagram of a modular structure of a target volume determination sub-module in an implementation of an embodiment of the present application;
  • FIG. 20 is an example schematic diagram of a modular structure of a second unit in an implementation of an embodiment of the present application;
  • FIG. 21 is an example schematic diagram of a modular structure of an adjustment module in an implementation of an embodiment of the present application;
  • FIG. 22 is an example schematic diagram of a modular structure of a target volume determination sub-module in an implementation of an embodiment of the present application;
  • FIG. 23 is an example schematic diagram of a modular structure of an adjustment module in an implementation of an embodiment of the present application;
  • FIG. 24 is an example schematic diagram of a modular structure of a target volume determination sub-module in an implementation of an embodiment of the present application;
  • FIG. 25 is an example schematic diagram of a modular structure of an adjustment module in an implementation of an embodiment of the present application;
  • FIG. 26 is an example schematic diagram of a modular structure of an adjustment module in an implementation of an embodiment of the present application;
  • FIG. 27 is an example structural diagram of a noise controlling device according to an embodiment of the present application; and
  • FIG. 28 is an example structural diagram of a noise controlled device according to an embodiment of the present application.
  • DETAILED DESCRIPTION
  • Various embodiments of the present application are further described in detail hereinafter with reference to the accompanying drawings and embodiments. The following embodiments are intended to describe the present application, but not to limit the scope of the present application.
  • Those skilled in the art should understand that, in the embodiments of the present application, sequence numbers of steps do not mean an order of execution, and the order of execution of the steps should be determined according to functions and internal logic thereof, but should not pose any limitation to the implementation process of the implementations of the present application.
  • In addition, the terms such as “first” and “second” in the embodiments of the present application are merely used to distinguish different steps, devices or modules, which neither represent any specific technical meaning nor represent a necessary logical order between them.
  • The term “noise” in the present application refers to sounds that affect people's work, study and rest, which has relativity, for example, when a user makes a call, voices, music, whistles and the like around the user may become noise.
  • During research, the inventor has found that, before a user enters into a sound sensitive state, the user may often perform regular operations on a portable electronic device. For example, before going to bed, the user may adjust the mobile phone to a silent mode. For another example, before answering the phone, the user may press the answer key. Therefore, according to the user's operating habits, the corresponding electronic device (for example, a mobile phone) may previously know that the user will enter into a sound sensitive state, so as to notify surrounding electronic devices which are making a sound to reduce the volume in advance, thereby avoiding interference with the user.
  • FIG. 1 is a flowchart of a noise control method according to an embodiment of the present application; the method may be executed by, for example, a noise controlling device, as shown in FIG. 1, and the method includes:
  • S120: acquiring noise information of an ambient environment;
  • S140: judging whether the noise information satisfies a predetermined condition, and if yes, acquiring a first message from a first device; and
  • S160: judging, according to the first message, whether the noise information is related to the first device, and if yes, sending a second message to the first device, the second message being used to notify the first device to adjust a volume.
  • According to the noise control method in the embodiment of the present application, noise information is acquired from noise in an ambient environment, a first message is acquired from a first device, and in the case that the noise information is related to the first device, a second message is automatically sent to the first device, so as to notify the first device to adjust a volume, thereby easily and quickly realizing noise control over a specific device, and improving user experience.
  • Functions of the steps S120, S140 and S160 are described below in detail.
  • In an example implementation, in the step S120, the noise information includes: a noise intensity value. The noise intensity value refers to information that may reflect intensity of noise in an ambient environment, for example, it may be a noise sound pressure level, a noise signal intensity or the like.
  • In an example implementation, in the step S140, the satisfying a predetermined condition includes that: the noise intensity value is greater than a predetermined threshold. The predetermined threshold may be set by a user, for example, a setting interface is output, and set the predetermined threshold according to an input value of the user. Alternatively, the predetermined threshold may be automatically set according to the user's current sensitivity to noise, for example, when the user adjusts a mobile phone to a silent mode, it indicates that the user may want to sleep next, and the predetermined threshold is automatically set to 10 dB; when the user presses an answer key of a mobile phone, the predetermined threshold is automatically set to 20 dB.
  • The first device may be one or more devices that may produce noise, for example, TV sets, audio systems, person computers or other devices. In the step S140, the first message may be acquired from the first device through passive receiving, for example, the first device broadcasts the first message, and the first message is directly received according to the method; or the first message may also be acquired from the first device through active requesting, for example, according to the method, a request message is first sent to the first device, and the first device feeds back the first message according to the request message.
  • The first message may include sound sampling information of the first device. The sound sampling information may be a sound sampling fragment of the first device, and may also be a sound sampling feature of the first device.
  • In the step S160, the judging, according to the first message, whether the noise information is related to the first device may include:
  • S161: judging whether the sound sampling information matches the noise information, and if yes, judging that the noise information is related to the first device.
  • For the sake of simplicity, the following description about the step S161 is merely based on the situation where the sound sampling information is a sound sampling fragment (when the noise sampling information is a sound sampling feature, the following steps a and b may be omitted during processing on the sound sampling information).
  • In an example implementation, the step S161 may include:
  • a) dividing an audio signal to be processed into a plurality of frames;
  • b) extracting features of audio signals of each frame, the features include, but are not limited to, Fourier coefficients, Mel-frequency Cepstral Coefficients (MFCCs), spectral flatness, spectral sharpness, Linear Predictive Coding coefficients and the like;
  • c) compressing the extracted features by using a classification algorithm, to form a sub-fingerprint corresponding to each frame;
  • d) taking the sound sampling information as the audio signal to be processed to execute the steps a-c, to obtain a plurality of sub-fingerprints corresponding to the sound sampling information, the plurality of sub-fingerprints forming a fingerprint block; and taking the noise information as the audio signal to be processed to execute the steps a-c, to obtain a plurality of sub-fingerprints corresponding to the noise information, the plurality of sub-fingerprints forming a fingerprint stream; and
  • e) comparing similarity between different parts of the fingerprint block and the fingerprint stream, so as to judge whether they match each other; when the similarity is greater than a predetermined value, it may be considered that they match each other.
  • Reference may be made to Jaap Haitsma and Antonius Kalker et al.'s Paper “A Highly Robust Audio Fingerprinting System”, International Symposium on Music Information Retrieval (ISMIR) 2002, pp. 107-115, for example implementation of the steps a-e. This is not the focus of the present application, and is not repeated herein.
  • In the example implementation, the noise information may be noise information in a predetermined time period, and in order to improve matching accuracy, the length of the predetermined time period should be greater than a time length threshold, for example, the noise information may be a noise record with a time length of 1 minute.
  • In an example implementation, the first device that receives the second message may reduce its volume upon receipt of the second message, for example, the device reduces the volume by 10 dB each time.
  • In an example implementation, the first device may also make out its volume adjustment policy flexibly according to actual situations. In this case, corresponding information may be transmitted to the first device through the second message, so as to provide a basis for the first device to make out a volume adjustment policy.
  • In an example implementation, the second message may include: the noise intensity value, the predetermined threshold, and a transmit power value of the second message.
  • In an example implementation, the second message may include: the noise intensity value, the predetermined threshold, and position information of a sender of the second message.
  • In an example implementation, the second message may include: the noise intensity value, the predetermined threshold, noise sampling information and a corresponding sampling time. The noise sampling information and the sampling time may be acquired during acquisition of the noise information, that is to say, the noise information acquired from the noise of the ambient environment includes the noise sampling information and the sampling time. The noise sampling information may be an original noise sampling fragment or a processed noise sampling feature.
  • How the first device uses information included in the second message to adjust the volume will be described hereinafter, which is not repeated herein.
  • The noise information in the present application may be noise information corresponding to all collected sound frequencies. In addition, in another example implementation, the noise information may also be noise information of some specific sound frequency intervals, that is, noise information of at least one sound frequency interval. The implementation is mainly applicable to a situation where the user is relatively sensitive to noise in a specific sound frequency interval, for example, when the user is thinking, in terms of voices of character dialogues from a TV set and music from an audio system, the user may be more sensitive to the voices of dialogues. Therefore, the mobile phone of the user may acquire noise information of a sound frequency interval (for example, 300 HZ to 3400 HZ) corresponding to the voices of character dialogues from the noise of the ambient environment according to the user's habits, and then tasks in the steps S140 and S160 are executed.
  • Suppose that the noise information is noise information within a sound frequency interval corresponding to the voices of character dialogues and the corresponding first message is acquired respectively from the TV set and the audio system in the method, in the step S160, it may be judged that the noise information is related to the TV set, instead of being related to the audio system, so that a second message may be sent to the TV set according to the method, so as to notify the TV set to reduce the volume. Therefore, the method in the implementation may control a specific electronic device to reduce noise more pertinently.
  • In addition, in another example implementation, the sound frequency interval may be set by the user; as shown in FIG. 2, the method may further include:
  • S110: setting at least one sound frequency interval according to user input.
  • In addition, the embodiments of the present application also provide a computer readable medium, comprising computer readable instructions which perform the following operations when being executed: executing the operations of steps S120, S140 and S160 of the method in the implementation shown in FIG. 1.
  • To sum up, according to the noise control method in the example implementation, judgment may be made according to noise information of an ambient environment, if adjustment is satisfied, the second message is sent to other devices, and corresponding information may be transmitted through the second message, so that the other devices make out a volume adjustment policy according to their own situations, thereby simplifying noise control steps and improving user experience.
  • FIG. 3 is a flowchart of a noise control method according to another embodiment of the present application; the method may be executed by, for example, a noise controlled device, as shown in FIG. 3, and the method includes:
  • S320: acquiring, by the device, sound sampling information of a sound the device makes;
  • S340: sending a first message including the sound sampling information;
  • S360: receiving a second message from an external device; and
  • S380: adjusting a volume based on a volume adjustment policy according to the second message and a current volume.
  • According to the method in this embodiment, sound sampling information of a sound the device makes is acquired, a first message including the sound sampling information is sent, a second message sent from an external device is received, and a volume is adjusted based on a volume adjustment policy according to the second message and a current volume, so that the noise controlled device may take the initiative to report its own sounding condition to the external device and automatically adjust the volume according to a request from the external device, thereby reducing noise output, simplifying noise control steps, and improving user experience.
  • Functions of the steps S320, S340, S360 and S380 are described below in detail.
  • In the step S320, the sound sampling information may be collected through a microphone at a sound output side, and may also be acquired by intercepting corresponding audio signals before sound output. The sound sampling information may include: a sound sampling fragment or a sound sampling feature. The sound sampling fragment may be a non-processed sound recording or audio signal data, and the sound sampling feature may be feature information extracted from the sound sampling fragment, such as a spectral feature.
  • In the step S340, the first message including the sound sampling information may be sent through broadcasting, and the first message including the sound sampling information may also be sent to a specific device through unicasting. In the case of unicasting, a sender of the first message should know in advance labeling information of the specific device, for example, a TV set of the user is notified in advance about a MAC address of the user's mobile phone, and the TV set may send the first message to the mobile phone through unicasting.
  • In the step S360, the external device is an electronic device that receives the first message, for example, the TV set in the foregoing example.
  • In an example implementation, the second message includes: a noise intensity value, a predetermined threshold, and a transmit power value of the second message. Moreover, referring to FIG. 4, the step S380 includes:
  • S381 a: determining a target volume according to the noise intensity value, the predetermined threshold, the current volume, the transmit power value, and a received signal intensity of the second message; and
  • S382 a: adjusting the volume according to the target volume.
  • The target volume in the present application is a target value after volume adjustment. In the step S382 a, the volume may be directly adjusted to the target volume.
  • Specifically, in an example implementation, referring to FIG. 5, the step S381 a may include:
  • S3811 a: obtaining a wireless signal attenuation value according to the transmit power value and the received signal intensity;
  • S3812 a: obtaining a first sub-noise intensity value in the noise intensity value according to the wireless signal attenuation value and the current volume;
  • S3813 a: obtaining a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
  • S3814 a: determining the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
  • In an example implementation, the step S3812 a may include:
  • S38121 a: determining an intermediate parameter according to the wireless signal attenuation value, where the intermediate parameter may be a parameter capable of associating the wireless signal attenuation value and a sound signal attenuation value, for example, it may be a distance; and
  • S38122 a: obtaining the first sub-noise intensity value in the noise intensity value according to the intermediate parameter and the current volume.
  • In the present application, the noise intensity value may include: a noise sound pressure level or a noise signal intensity, which reflects information of intensity of noise at the external device. The first sub-noise intensity value reflects a contribution value of a sound output by a current noise source (that is, a current sounding device) for intensity of noise at the external device; the second sub-noise intensity value reflects a contribution value of a sound output by another noise source (that is, another sounding device) for the intensity of the noise at the external device. Correspondingly, when the noise intensity value is the noise sound pressure level, the first sub-noise intensity value is a first sub-noise sound pressure level, and the second sub-noise intensity value is a second sub-noise sound pressure level; when the noise intensity value is the noise signal intensity, the first sub-noise intensity value is a first sub-noise signal intensity, and the second sub-noise intensity value is a second sub-noise signal intensity. For the sake of simplicity, the following description is given merely by illustrating the situation where the noise intensity value is the noise sound pressure level.
  • Suppose that the transmit power value of the second message is Lt, the received signal intensity of the second message is Lr, the current volume is Lc, the noise sound pressure level at the external device is Lp0, and the predetermined threshold is Lp.
  • The wireless signal attenuation value Ld1 may be obtained according to the step S3411 a:

  • Ld 1 =Lt−Lr.
  • For the sake of simplicity, it is considered that attenuation of a wireless signal is merely related to a propagation distance of the signal, and suppose that the propagation distance of the signal and an attenuation value of the wireless signal have a first function relationship therebetween, a distance D between the device and the external device may be obtained according to the step S34121 a:

  • D 1 =f 1(Ld 1);
  • where f1 denotes the first function relationship.
  • For the sake of simplicity, it is considered that attenuation of a sound is merely related to a propagation distance of the sound, and suppose that an attenuation value of the sound and the propagation distance thereof have a second function relationship therebetween, an attenuation value Ld2 of the sound after passing through the distance may be obtained according to the step S34122 a:

  • Ld 2 =f 2(D);
  • where f2 denotes the second function relationship.
  • Further, according to the current volume, the first sub-noise sound pressure level Lp1 at the external device may be obtained:

  • Lp 1 =Lc−Ld 2;
  • in the step S3413 a, suppose that the second sub-noise sound pressure level is Lp2, there is a formula according to sound intensity superposition:
  • Lp 0 = 10 × lg ( 10 Lp 1 10 + 10 Lp 2 10 ) ;
  • Lp2 may be obtained through calculation according to the formula.
  • In the step S3414 a, first suppose that other noise sources may not adjust the volume and also suppose that the first sub-noise sound pressure level after volume adjustment is Lp1′, according to the predetermined threshold Lp and the second sub-noise sound pressure level Lp2, there is a formula according to sound intensity superposition:
  • Lp = 10 × lg ( 10 Lp 1 10 + 10 Lp 2 10 ) ;
  • Lp1′ may be obtained through calculation according to the formula.
  • Further, the target volume La may be obtained according to the current volume Lc and the first sub-noise sound pressure levels Lp1 and Lp1′ before and after volume adjustment:

  • La=Lc−(Lp 1 −Lp 1′).
  • Those skilled in the art should understand that, in the step S3814 a, in determination of the target volume, it may also be assumed that the other noise sources may adjust the volume, for example, it may be assumed that the second sub-noise sound pressure level after adjustment of the other noise sources is Lp2′=Lp2×50%.
  • In an example implementation, the second message includes: a noise intensity value, a predetermined threshold, and position information. The position information is position information of the external device. Moreover, referring to FIG. 6, the step S380 includes:
  • S381 b: determining a target volume according to the noise intensity value, the predetermined threshold, the current volume and the position information; and
  • S382 b: adjusting the volume according to the target volume.
  • Specifically, referring to FIG. 7, in an example implementation, the step S381 b may include:
  • S3811 b: determining a distance according to the position information;
  • S3812 b: obtaining the first sub-noise intensity value in the noise intensity value according to the distance and the current volume;
  • S3813 b: obtaining a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
  • S3814 b: determining the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
  • In the step S3811 b, the distance is a distance from a current sounding source to the external device. The current sounding source may acquire its own position information through indoor positioning or other technologies, and a distance between it and the external device may be obtained in combination with position information of the external device.
  • The example implementation process of the steps S3812 b-S3814 b is similar to that of the steps S3812 a, S3813 a and S3814 a in the previous implementation, which is not repeated herein.
  • In an example implementation, the second message includes: a noise intensity value, a predetermined threshold, noise sampling information and a corresponding sampling time. Moreover, referring to FIG. 8, the step S380 includes:
  • S381 c: determining a target volume according to the noise intensity value, the predetermined threshold, the current volume, the noise sampling information and the sampling time; and
  • S382 c: adjusting the volume according to the target volume.
  • Specifically, in an example implementation, referring to FIG. 9, the step S381 c may include:
  • S3811 c: matching the noise sampling information with a sound output record of the device, to determine a sounding time of the noise sampling information;
  • S3812 c: determining a distance according to a time difference between the sampling time and the sounding time;
  • S3813 c: obtaining the first sub-noise intensity value in the noise intensity value according to the distance and the current volume;
  • S3814 c: obtaining a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
  • S3815 c: determining the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
  • In the step S3811 c, the noise sampling information may be a recording of ambient noise, that is, a noise sampling fragment, and may also be a noise sampling feature (such as a spectral feature) obtained through extraction after processing on the noise sampling fragment. For the sake of simplicity, the following description about the step S3811 c is merely based on the situation where the noise sampling information is a noise sampling fragment (when the noise sampling information is a noise sampling feature, the following steps a and b may be omitted during processing on the noise sampling information).
  • In an example implementation, the step S3811 c may include:
  • a) dividing an audio signal to be processed into a plurality of frames;
  • b) extracting features of audio signals of each frame, the features include, but are not limited to, Fourier coefficients, Mel-frequency Cepstral Coefficients (MFCCs), spectral flatness, spectral sharpness, Linear Predictive Coding coefficients and the like;
  • c) compressing the extracted features by using a classification algorithm, to form a sub-fingerprint corresponding to each frame;
  • d) taking the noise sampling information as the audio signal to be processed to execute the steps a-c, to obtain a plurality of sub-fingerprints corresponding to the noise sampling information, the plurality of sub-fingerprints forming a fingerprint block; and taking sound output of the device as the audio signal to be processed to execute the steps a-c, to obtain a plurality of sub-fingerprints corresponding to the sound output, the plurality of sub-fingerprints forming a fingerprint stream; and
  • e) comparing similarity between different parts of the fingerprint block and the fingerprint stream, so as to judge whether they match each other; when the similarity is greater than a predetermined value, it may be considered that they match each other, and a sounding time of the noise sampling information may be obtained in the case that they match each other.
  • Reference may be made to Jaap Haitsma and Antonius Kalker et al.'s Paper “A Highly Robust Audio Fingerprinting System”, International Symposium on Music Information Retrieval (ISMIR) 2002, pp. 107-115, for example implementation of the steps a-e. This is not the focus of the present application, and is not repeated herein.
  • In the step S3812 c, a time difference may be obtained according to the sampling time and the sounding time, and then a distance between the device and the external device may be obtained in combination with a propagation speed of the sound in the air.
  • The example implementation process of the steps S3813 c-S3815 c is similar to that of the steps S3812 b-S3814 b in the previous example implementation, which is not repeated herein.
  • Referring to FIG. 10, in an example implementation, the step S380 includes:
  • S381 d: determining a step length according to the second message and the current volume; and
  • S382 d: adjusting the volume according to the step length.
  • In order to better realize the method in the example implementation, the method in the implementation may be executed cyclically, that is, each time the second message is received, the step S380 is executed once, until the second message is no longer received. The step length may be a fixed value, and may also be a non-fixed value. The step length may be set with reference to the current volume, for example, when the current volume is great, a large step length is set, and when the current volume is small, a small step length is set.
  • For example, when the second message is received for the first time, the current volume is 80 dB, the step length is determined to be −20 dB, and the adjusted volume is 60 dB; when the second message is received for the second time, the current volume is 60 dB, the step length is determined to be −8 dB, and the adjusted volume is 52 dB; when the second message is received for the third time, the current volume is 52 dB, the step length is determined to be −5 dB, and the adjusted volume is 47 dB.
  • Referring to FIG. 11, in an example implementation, the step S380 includes:
  • S381 e: determining a volume interval according to the second message and the current volume; and
  • S382 e: controlling the volume to be within the volume interval.
  • In the example implementation, reference may be made to a predetermined proportion of the current volume for determination of the volume interval, for example, an upper limit of the volume interval may be set to 50% of the current volume, a lower limit is set to 0, and suppose that the current volume is 80 dB, the volume interval determined in the step S341 e is [40, 0].
  • According to the method in the example implementation, merely output volume of an audio signal beyond a volume interval may be adjusted, so as to avoid the situation where the output volume of a part with a smaller volume value in the audio signal is 0 after adjustment to result in that other users cannot hear totally.
  • In addition, the embodiments of the present application also provide a computer readable medium, comprising computer readable instructions which perform the following operations when being executed: executing the operations of steps S320, S340, S360 and S380 of the method in the example implementation shown in FIG. 3.
  • To sum up, according to the noise control method in this embodiment, sound sampling information of the device may be actively reported to the external device, a second message of the external device is received, target volume, a step length or a volume interval may be determined according to related information in the second message and the current volume of the device, and then corresponding volume adjustment may be performed, so as to easily, quickly and more pertinently realize control over ambient noise, thereby improving user experience.
  • FIG. 12 is a schematic diagram of a modular structure of a noise controlling device according to an embodiment of the present application. The noise controlling device may generally be a device carried by a user, for example, a smart phone, a smart watch, smart glasses, a smart ring or other devices. The devices are carried by the user, noise information acquired by the devices is closer to noise that the user feels with ears.
  • As shown in FIG. 12, the controlling device 1200 includes:
  • a first acquisition module 1210, configured to acquire noise information of an ambient environment;
  • a first judgment module 1220, configured to judge whether the noise information satisfies a predetermined condition;
  • a second acquisition module 1230, configured to acquire a first message from a first device if the noise information satisfies the predetermined condition;
  • a second judgment module 1240, configured to judge, according to the first message, whether the noise information is related to the first device; and
  • a message sending module 1250, configured to send a second message to the first device if the noise information is related to the first device, the second message being used to notify the first device to adjust a volume.
  • In an example implementation, the noise information includes: a noise intensity value. The noise intensity value refers to information that may reflect intensity of noise in an ambient environment, for example, it may be a noise sound pressure level, a noise signal intensity or the like. Referring to FIG. 13, in this example implementation, the first acquisition module 1210 includes:
  • a first acquisition unit 1211, configured to acquire a noise intensity value of the ambient environment.
  • In an example implementation, the satisfying a predetermined condition includes that: the noise intensity value is greater than a predetermined threshold.
  • In an example implementation, the second message may include: the noise intensity value, the predetermined threshold, and a transmit power value of the second message.
  • In an example implementation, the second message may include: the noise intensity value, the predetermined threshold, and position information of a sender of the second message.
  • In an example implementation, the second message may include: the noise intensity value, the predetermined threshold, noise sampling information and a corresponding sampling time. The noise sampling information and the sampling time may be acquired during acquisition of the noise information, that is to say, the noise information acquired from the noise of the ambient environment includes the noise sampling information and the sampling time. Referring to FIG. 14, in the example implementation, the first acquisition module 1210 may further include:
  • a second acquisition unit 1212, configured to acquire noise sampling information and a corresponding sampling time from noise of the ambient environment.
  • The noise information in the present application may be noise information corresponding to all collected sound frequencies. In addition, in another example implementation, the noise information may also be noise information of some specific sound frequency intervals, that is, noise information of at least one sound frequency interval. Referring to FIG. 15, in the example implementation, the controlling device 1200 may further include:
  • a setting module 1260, configured to set at least one sound frequency interval according to user input, the noise information being noise information of at least one sound frequency interval.
  • FIG. 16 is a schematic diagram of a modular structure of a noise controlled device according to an embodiment of the present application; the noise controlled device may be, for example, a TV set, an audio device, a game console, a personal computer, a mobile phone and other devices that may make a loud sound.
  • Referring to FIG. 16, the controlled device 1600 may include:
  • an acquisition module 1610, configured to acquire sound sampling information of a sound the device makes;
  • a sending module 1620, configured to send a first message including the sound sampling information;
  • a receiving module 1630, configured to receive a second message from an external device; and
  • an adjustment module 1640, configured to adjust a volume based on a volume adjustment policy according to the second message and a current volume.
  • Referring to FIG. 17, in an example implementation, the controlled device 1600 further includes:
  • a message processing module 1650, configured to extract a noise intensity value and a predetermined threshold from the second message.
  • In an example implementation, the message processing module 1650 is further configured to extract a transmit power value of the second message from the second message.
  • Referring to FIG. 18, in the example implementation, the adjustment module 1640 may include:
  • a target volume determination sub-module 1641 a, configured to determine a target volume according to the noise intensity value, the predetermined threshold, the current volume, the transmit power value and a received signal intensity of the second message; and;
  • an adjustment sub-module 1642 a, configured to adjust the volume according to the target volume.
  • Referring to FIG. 19, the target volume determination sub-module 1641 a may include:
  • a first unit 16411 a, configured to obtain a wireless signal attenuation value according to the transmit power value and the received signal intensity;
  • a second unit 16412 a, configured to obtain a first sub-noise intensity value in the noise intensity value according to the wireless signal attenuation value and the current volume;
  • a third unit 16413 a, configured to obtain a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
  • a fourth unit 16414 a, configured to determine the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
  • Referring to FIG. 20, the second unit 16412 a may include:
  • an intermediate parameter determination sub-unit 164121 a, configured to determine an intermediate parameter according to the wireless signal attenuation value; and
  • a first sub-noise intensity value sub-unit 164122 a, configured to obtain the first sub-noise intensity value according to the intermediate parameter and the current volume.
  • In an example implementation, the message processing module 1650 is further configured to extract position information of the external device from the second message.
  • Referring to FIG. 21, in the example implementation, the adjustment module 1640 may include:
  • a target volume determination sub-module 1641 b, configured to determine a target volume according to the noise intensity value, the predetermined threshold, the current volume and the position information; and
  • an adjustment sub-module 1642 b, configured to adjust the volume according to the target volume.
  • Referring to FIG. 22, the target volume determination sub-module 1641 b may include:
  • a first unit 16411 b, configured to determine a distance according to the position information;
  • a second unit 16412 b, configured to obtain a first sub-noise intensity value in the noise intensity value according to the distance and the current volume;
  • a third unit 16413 b, configured to obtain a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
  • a fourth unit 16414 b, configured to determine the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
  • In an example implementation, the message processing module 1650 is further configured to extract noise sampling information and a corresponding sampling time from the second message.
  • Referring to FIG. 23, in the example implementation, the adjustment module 1640 includes:
  • a target volume determination sub-module 1641 c, configured to determine a target volume according to the noise intensity value, the predetermined threshold, the current volume, the noise sampling information and the sampling time; and
  • an adjustment sub-module 1642 c, configured to adjust the volume according to the target volume.
  • Referring to FIG. 24, the target volume determination sub-module 1641 c includes:
  • a first unit 16411 c, configured to match the noise sampling information with own sound output record, to determine a sounding time of the noise sampling information;
  • a second unit 16412 c, configured to determine a distance between the noise controlled device and the first device according to a time difference between the sampling time and the sounding time;
  • a third unit 16413 c, configured to obtain a first sub-noise intensity value at the first device according to the distance and the current volume;
  • a fourth unit 16414 c, configured to obtain a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
  • a fifth unit 16415 c, configured to determine the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
  • Referring to FIG. 25, in an example implementation, the adjustment module 1640 includes:
  • a step length determination sub-module 1641 d, configured to determine a step length according to the second message and a current volume of the device; and
  • an adjustment sub-module 1642 d, configured to adjust the volume according to the step length.
  • Referring to FIG. 26, in an example implementation, the adjustment module 1640 includes:
  • a volume interval determination sub-module 1641 e, configured to determine a volume interval according to the second message and a current volume of the device; and
  • an adjustment sub-module 1642 e, configured to control the volume to be within the volume interval.
  • The structure of a noise controlling device according to one embodiment of the present application is shown in FIG. 27. The specific embodiment of the present application does not limit specific implementation of the noise controlling device; referring to FIG. 27, the noise controlling device 2700 may include:
  • a processor 2710, a communications interface 2720, a memory 2730, and a communications bus 2740.
  • The processor 2710, the communications interface 2720, and the memory 2730 complete mutual communications via the communications bus 2740.
  • The communications interface 2620 is configured to communicate with another network element.
  • The processor 2710 is configured to execute a program 2732, and may specifically implement relevant steps in the process embodiments shown in FIG. 1 to FIG. 12.
  • Specifically, the program 2732 may include a program code, the program code including a computer operation instruction.
  • The processor 2710 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or be configured to be one or more integrated circuits which implement the embodiments of the present application.
  • The memory 2730 is configured to store the program 2732. The memory 2730 may include a high-speed RAM memory, and may also include a non-volatile memory, for example, at least one magnetic disk memory. The program 2732 may specifically execute the following steps:
  • acquiring noise information of an ambient environment;
  • judging whether the noise information satisfies a predetermined condition, and if yes, acquiring a first message from a first device; and
  • judging, according to the first message, whether the noise information is related to the first device, and if yes, sending a second message to the first device, the second message being used to notify the first device to adjust a volume.
  • Reference may be made to the corresponding steps or modules in the foregoing embodiments for specific realization of each step in the program 2732, which is not repeated herein. Those skilled in the art may clearly understand that, reference may be made to the corresponding description in the foregoing process embodiments for the particular working procedures of the devices and modules described above, and will not be repeated herein in order to make the description convenient and concise.
  • The structure of a noise controlled device according to one embodiment of the present application is as shown in FIG. 28. The specific embodiment of the present application does not limit specific implementation of the noise controlled device; referring to FIG. 28, the noise controlled device 2800 may include:
  • a processor 2810, a communications interface 2820, a memory 2830, and a communications bus 2840.
  • The processor 2810, the communications interface 2820, and the memory 2830 complete mutual communications via the communications bus 2840.
  • The communications interface 2820 is configured to communicate with another network element.
  • The processor 2810 is configured to execute a program 2832, and may specifically implement relevant steps in the process embodiment shown in FIG. 9.
  • Specifically, the program 2832 may include a program code, the program code including a computer operation instruction.
  • The processor 2810 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or be configured to be one or more integrated circuits which implement the embodiments of the present application.
  • The memory 2830 is configured to store the program 2832. The memory 2830 may include a high-speed RAM memory, and may also include a non-volatile memory, for example, at least one magnetic disk memory. The program 2832 may specifically execute the following steps: acquiring, by the device sound sampling information of a sound the device makes;
  • sending a first message including the sound sampling information;
  • receiving a second message from an external device; and
  • adjusting a volume based on a volume adjustment policy according to the second message and a current volume.
  • Reference may be made to the corresponding steps or modules in the foregoing embodiments for specific realization of each step in the program 2832, which is not repeated herein. Those skilled in the art may clearly understand that, reference may be made to the corresponding description in the foregoing process embodiments for the particular working procedures of the devices and modules described above, and will not be repeated herein in order to make the description convenient and concise.
  • It may be appreciated by those of ordinary skill in the art that each exemplary unit and method step described with reference to the embodiments disclosed herein may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware mode or a software mode depends on particular applications and design constraint conditions of the technical solution. The professional technicians may use different methods to implement the functions described with respect to each particular application, but such implementation should not be considered to go beyond the scope of the present application.
  • If the functions are implemented in the form of a software functional unit and is sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application essentially or the part which contributes to the prior art or a part of the technical solution may be embodied in the form of a software product, and the computer software product is stored in a storage medium, and includes several instructions for enabling a computer device (which may be a personal computer, a controller, a network device, or the like) to execute all or some steps of the method described in each embodiment of the present application. The foregoing storage medium includes various media which may store a program code, such as a USB disk, a mobile hard disk, a read-merely memory (ROM), a random access memory (RAM), a magnetic disk, an optical disc, or the like.
  • The above embodiments are merely used to describe the present application, instead of limiting the present application; various alterations and variants may be made by those of ordinary skill in the art without departing from the spirit and scope of the present application, so all equivalent technical solutions also belong to the scope of the present application, and the scope of patent protection of the present application should be defined by claims.

Claims (32)

What is claimed is:
1. A method, comprising:
acquiring, by a device comprising a processor, sound sampling information of a sound the device generates;
sending a first message comprising the sound sampling information;
receiving a second message from an external device; and
adjusting a volume based on a volume adjustment policy according to the second message and a current volume.
2. The method according to claim 1, wherein the second message comprises: a noise intensity value and a predetermined threshold.
3. The method according to claim 2, wherein the second message further comprises: a transmit power value of the second message.
4. The method according to claim 3, wherein the adjusting the volume comprises:
determining a target volume according to the noise intensity value, the predetermined threshold, the current volume, the transmit power value, and a received signal intensity of the second message; and
adjusting the volume according to the target volume.
5. The method according to claim 4, wherein the determining the target volume comprises:
obtaining a wireless signal attenuation value according to the transmit power value and the received signal intensity;
obtaining a first sub-noise intensity value in the noise intensity value according to the wireless signal attenuation value and the current volume;
obtaining a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
determining the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
6. The method according to claim 2, wherein the second message further comprises: noise sampling information and a corresponding sampling time.
7. The method according to claim 6, wherein the adjusting the volume comprises:
determining a target volume according to the noise intensity value, the predetermined threshold, the current volume, the noise sampling information and the corresponding sampling time; and
adjusting the volume according to the target volume.
8. The method according to claim 7, wherein the determining the target volume comprises:
matching the noise sampling information with a sound output record of the device, to determine a sounding time of the noise sampling information;
determining a distance according to a time difference between the sampling time and the sounding time;
obtaining a first sub-noise intensity value in the noise intensity value according to the distance and the current volume;
obtaining a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
determining the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
9. The method according to claim 6, wherein the noise sampling information comprises: a noise sampling fragment or a noise sampling feature.
10. The method according to claim 2, wherein the second message further comprises: position information.
11. The method according to claim 10, wherein the adjusting the volume comprises:
determining a target volume according to the noise intensity value, the predetermined threshold, the current volume and the position information; and
adjusting the volume according to the target volume.
12. The method according to claim 11, wherein the determining the target volume according to the noise intensity value, the predetermined threshold, the current volume and the position information comprises:
determining a distance according to the position information;
obtaining a first sub-noise intensity value in the noise intensity value according to the distance and the current volume;
obtaining a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
determining the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
13. The method according to claim 2, wherein the noise intensity value comprises: a noise sound pressure level or a noise signal intensity.
14. The method according to claim 1, wherein the adjusting the volume comprises:
determining a step length according to the second message and the current volume; and
adjusting the volume according to the step length.
15. The method according to claim 1, wherein the adjusting the volume comprises:
determining a volume interval according to the second message and the current volume; and
controlling the volume to be within the volume interval.
16. The method according to claim 1, wherein the sending the first message comprising the sound sampling information comprises:
broadcasting the first message comprising the sound sampling information.
17. The method according to claim 1, wherein the noise sampling information comprises: a sounding sampling fragment or a sound sampling feature.
18. A device, comprising:
a processor, coupled to a memory, that executes or facilitates execution of executable modules, the executable modules comprising:
an acquisition module configured to acquire sound sampling information of a sound the device makes;
a sending module configured to send a first message comprising the sound sampling information;
a receiving module configured to receive a second message from an external device; and
an adjustment module configured to adjust a volume based on a volume adjustment policy according to the second message and a current volume.
19. The device according to claim 18, wherein the executable modules further comprise:
a message processing module configured to extract a noise intensity value and a predetermined threshold from the second message.
20. The device according to claim 19, wherein the message processing module is further configured to extract a transmit power value of the second message from the second message.
21. The device according to claim 20, wherein the adjustment module comprises:
a target volume determination sub-module configured to determine a target volume according to the noise intensity value, the predetermined threshold, the current volume, the transmit power value and a received signal intensity of the second message; and
an adjustment sub-module configured to adjust the volume according to the target volume.
22. The device according to claim 21, wherein the target volume determination sub-module comprises:
a first unit configured to obtain a wireless signal attenuation value according to the transmit power value and the received signal intensity;
a second unit configured to obtain a first sub-noise intensity value in the noise intensity value according to the wireless signal attenuation value and the current volume;
a third unit configured to obtain a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
a fourth unit configured to determine the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
23. The device according to claim 19, wherein the message processing module is further configured to extract noise sampling information and a corresponding sampling time from the second message.
24. The device according to claim 23, wherein the adjustment module comprises:
a target volume determination sub-module configured to determine a target volume according to the noise intensity value, the predetermined threshold, the current volume, the noise sampling information and the corresponding sampling time; and
an adjustment sub-module configured to adjust the volume according to the target volume.
25. The device according to claim 24, wherein the target volume determination sub-module comprises:
a first unit configured to match the noise sampling information with a sound output record of the device, to determine a sounding time of the noise sampling information;
a second unit configured to determine a distance according to a time difference between the sampling time and the sounding time;
a third unit configured to obtain a first sub-noise intensity value in the noise intensity value according to the distance and the current volume;
a fourth unit configured to obtain a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
a fifth unit configured to determine the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
26. The device according to claim 19, wherein the message processing module is further configured to extract position information from the second message.
27. The device according to claim 26, wherein the adjustment module comprises:
a target volume determination sub-module configured to determine a target volume according to the noise intensity value, the predetermined threshold, the current volume and the position information; and
an adjustment sub-module configured to adjust the volume according to the target volume.
28. The device according to claim 27, wherein the target volume determination sub-module comprises:
a first unit configured to determine a distance according to the position information;
a second unit configured to obtain a first sub-noise intensity value in the noise intensity value according to the distance and the current volume;
a third unit configured to obtain a second sub-noise intensity value according to the noise intensity value and the first sub-noise intensity value; and
a fourth unit configured to determine the target volume according to the predetermined threshold, the first sub-noise intensity value, the second sub-noise intensity value and the current volume.
29. The device according to claim 18, wherein the adjustment module comprises:
a step length determination sub-module configured to determine a step length according to the second message and the current volume; and
an adjustment sub-module configured to adjust the volume according to the step length.
30. The device according to claim 18, wherein the adjustment module comprises:
a volume interval determination sub-module configured to determine a volume interval according to the second message and the current volume; and
an adjustment sub-module configured to control the volume to be within the volume interval.
31. A computer readable storage device, comprising at least one executable instruction, which, in response to execution, causes a noise controlled device comprising a processor to perform operations, comprising:
acquiring, by the device, sound sampling information of a sound the device makes;
sending a first message comprising the sound sampling information;
receiving a second message from an external device; and
adjusting a volume based on a volume adjustment policy according to the second message and a current volume.
32. A noise controlled device for wireless communications, characterized by comprising a processor and a memory, the memory storing computer executable instructions, the processor being connected to the memory through a communication bus, and when the noise controlled device operates, the processor executes the computer executable instructions stored in the memory, so that the noise controlled device performs operations, comprising:
acquiring, by the noise controlled device, sound sampling information of a sound the device makes;
sending a first message comprising the sound sampling information;
receiving a second message from an external device; and
adjusting a volume based on a volume adjustment policy according to the second message and a current volume.
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